Opinions About 7.4 To 5.3 Swap?

[LSXmyford]

How Is That Msd Setup To Install,wiring Wise? Anyone?

Only a couple connections, it gives you a couple preset timing curves to play with.

Im guessing your going the junkyard route for the engine, make sure you get the coils, they aint cheap, without them, the distributor conversion would make more economical sense.

Probably need to ask questions about your transmission, going to carb, your gonna want a controller or determine if the stock ecm can handle this without the engine efi functional

You may realize its worth the hastle to just transplant the stock LS efi harness and reprogram the computer.

Either way you go, its pretty straight forward, just time consuming and alotta little things to work out. Glad its you and not me.

Are you sure you cant find a 454 wizard somewhere that cant help you tweak the snot out of it to get it to perform a little better mpg wise.

[srziemkowski]

Funny You Mention The 454 Wizard,i Talked To A Guy Who Told Me A List Of Things To Do,im Gonna Try That Route Adn Maybe Do A Ls Conversion In A Chevelle,i Cant Find Any Shorty Headers,they Show Some For A Ss454 But I Wonder What The Difference Would Be?hedman Says They Wont Woek,but I Think Why Not,the Manifold Part Number Is The Same.

[RedHeartbeat]

Hooker makes LSx conversion headers for the Chevelle if I'm not mistaken.

[RedHeartbeat]

Holley Performance Products Super Comp. Ceramic Engine Swap Header2289HKR

[srziemkowski]

Sorry, I Meant Headers For My 7.4 In My Burb

[LSXmyford]

long tube headers are usually more ideal for low end torque/ trucks.

summit racing has a set of hooker long tubes.

thorley tri Y are available as well (think these may very well be a direct replacement, not certain, I just glanced), not a long tube per sae but the tri Y design is a little different than equal length tubes.



I like the LSX engines just as much as anyone else but you got a 454 in your truck, it might be an underpowered turd stock but there is alotta potential there, your only limited to what you can afford.




Find a cheap beater to get mpg, bring out the 3/4 ton monster when its time to play.

[srziemkowski]

Ill Look Into Those Hookers,thank You